Trolley-wire support or hanger.



0. G. ETTE. TROLLEY WIRE SUPPORT 0R HANGER.

APPLICATION FILED MAY4, 1908.

Patentd Jan. 12, 1909,

UNITED STATES PAT rater...

CHARLES G. ETT E, OF ST. LOUIS, MISSOURI, ASSIGNOR TO ETTE INVESTMENTCOMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

TBOLLEY-WIRE SUPPORT OR HANG-ER.

No. ceases.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed May 4, 1908. Serial No. 430,768.

To all wlwnt it may concern:

Be it known that I, CHARLES G. ETTE, a citizen of the United States,residing at St. Louis, Missouri, have invented a certain new and usefulImprovement in Trolley-W ire Supports or Hangers, of which the followingis a full, clear, and exact description, such as will enable othersskilletl in the art to which itappertains to make and use the same,reference being had'to the accompanying drawings, forming part of thisspecification, in which Figure l is a side elevation of a trolley v wiresupport constructed in accordance with my invention; Fig. 2 is avertical sectional View taken on approximately the line 22 of Fig. 1;Fig. 3 is a detail perspective view of the insulating member and aportion of the shank that carries the clamping jaws; and.

Fig; dis a horizontal sectional View taken through the shanks of theclamping jaws.

This invention relates to supports orhangers for trolley Wires, andparticularly to the trolley supports used in systems in which thetrolley Wire is sustained in operative position by means of guide wiresthat extend transversely of a street and are connected to poles locatedat opposite sides of the street.

The main object of myinvention is to provide a trolley wire supportcomprising few parts and which can be manufactured at a low cost.

Another object of my invention is to provide a trolley wire support inwhich the jaws that clamp the trolley wire are perfectly insulated fromthat portion of the support which is connected to the guide wire thatsustains the support. And still another ob ject of my invention is toprovide a trolley I i l the preferred form of my invention, 1 desi l rib13 that fits in a recess in the shank of nates an inverted cup-shapedmember, the top of which is provided with a dome or crown 2 havingintegral lugs or hooks 3 which are adapted to engage a guide Wire A thatextends transversely of a street or road. The clamping members whichengage the trolley wire B consist of two jaws 4: and 5 that are carriedby a shank 6 which projects into the cup-shaped member 1, said shankbeing provided with a head that consists of two laterally projectingring-shaped flanges 7.

An insulating member, which preferably consists of two or more blocks 8of some suitable insulating material, is interposed between the flanges7 on the shank 6, and said insulating blocks conform to the interior ofthe cup-shaped member 1 so thatthey will fit snugly inside of same, asshown in Fig. 2. The insulating, member thus forms the supporting meansfor the shank 6 which carries the clamping jaws, and said insulatingmember is sustained and locked in operative position by means of amovable ring-shaped member ,9 provided with external screw-threads thatinterlock with the screw-threads 10 on the interior of the invertedcup-shaped member 1. The ringshaped locking member 9 is preferablyprovided at its upper edge with a flange 11 that provides an extendedsupporting surface for the insulating member and clamps said insulatingmember against the inside face of the top of the inverted cup-shapedmemher 1, as shown in Fig. 2, Said locking member 9 is also preferablyprovided at its lower end with a flared skirt 9 which tends to shedwater from the clamping jaws 4 and 5. 4

In the construction herein shown the shank (3 is provided with ahalf-round screwthreaded portion 4 and an integral clamp jaw 4 and thecooperating movable clamping jaw 5 consists of a separate part that isprovided with a half-round shank 5 -having external screw-threads.surrounds the screw-threaded shanks of said i jaws for forcing said jawstogether so that they will firmly clamp the trolley wire B 5 interposedbetweenthem, and the shank 6 is provided with a longitudinally extendingA clamping nut 12 the movable jaw and a laterally projecting lug 13*that extends through a slot insaid jaw so as to prevent the movable jawfrom moving laterally or vertically relatively to the integral jaw 4 onthe shank.

The clamping jaws may be of any preferred construction and can bedesigned to cooperate with either a round trolley wire or a groovedtrolley wire. All of the parts 01' my improved trolley wire support areformed of cast metal, preferably malleable iron, and the onlymachine-work that is required in the manufacture of the. device iscutting the threads 10 on the interior of the inverted cup-shaped member1 and on the exterior of the ring-shaped loclringinemher 9. The dome 2in the top'of the memher 1 prevents the upper end of the shank 6 fromcontacting with the top of said member, and the blocks 8 of insulatingmaterial hold said shank 6 spaced away from the 'sidesot said member sothat the clamping jaws which en age the trolley wire are perfectlyinsulated from that portion of the support which is connected to theguide wireA,

. thereby preventing the current in the trolley wire from passing intothe guide wireand thence into thepoles to which said guide wire isconnected.

The parts which form my improved trolley wire support can be assembledquickly, for a single member; namely, the locking ring 9, operates toclamp the insulating member in position and also sustain'the jaws whichclamp the trolley wire. v i

The flanges Ton the shank 6 between which the insulating member isinterposed prevent the clamping jaws from-moving upof screw-threadedparts that would rattle and work loose after the device had been in usefor a short period. My improved device overcomes this objectionablefeature as it comprises very few parts. The split insulating memberwhich is arranged between the flanges 7 on the shank 6 can be insertedeasily and said shank and insulating member are so formed that the shank6 can swivel in said insulating member and thus permit the trolley .wireto assume any angle relatively to the support.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

hit device for the purpose Qimii'ibGd, comprising an inverted cup-shapedmember, a removable device arranged inside of said member and detachablyconnected thereto, an insulating member mounted inside of saidcup-shaped member and resting upon said removable device, and aline-holding device comprising a shank passing through said insulatingmemberand provided with a head that rests upon the uppersurface of saidinsulating member; substantially as described. i

2. A device for the urpose described, comprising'an inverted cup-shapedmember provided withadome-shaped'top', a shank -projecting into saidmember and provided with laterally projecting flanges and means forholding a Wire, an insulating member arranged inside of said cup-shapedmember and interposed between the flangeson the shank'for'holding saidshank out of engagement with the, cup-shaped member, and means forclamping said insulating memberin position;substantially as described.

3. A device for the purpose described,

, comprising a. one-piece inverted cup-shaped member, a shank projectinginto said member andjprovidedwith clamping j aws,'flanges on saidshanlnan insulating member arranged inside of .saidinverted cup-shapedmember.- and interposed between said flanges, and a removable devicescrewed into the lower end of said inverted cup-shaped member-forretaining said insulating member in position; substantially asdescribed.

4. A device for the purpose described, comprising an inverted cup-shapedmember provided with lugs which are adapted to engage a guide wir.e,- aninsulating member arranged inside of said cup-shaped member,

a clamping ring screwed into said cup-" shaped member. for holding saidinsulating member in position, a shank passing through said insulatingflange or member and provided at its upper end with a head that rests onsaid insulating member, and means carried by said shank for holding atrolley wire; substantially as described.

5. A device for the purpose described, comprising an inverted cup-shapedmember formed'of malleable iron and havinga domeshaped top Which isprovided with integral lugs for engaging a guide wire, a sectionalinsulating member arranged inside of said cup-shaped member, a shankpassing through said-insulating member and provided with. a head whichrests upon the upper side of said insulating member in the hollow spitqof "said dome-shaped top, clamping jaws'can ried by said shank, a ringscrewed into said 'cup-shap ed"m1 nber and p'rbvided with. a Inte'stim 0ny whr eof I hereunto aflik my flared skirt. which sheds Water from saidslgnature'in the presence of two witnesses, clamping. jaws, and. aflange on theppper -thls twenty-ninth day of April19081 edge ofsaid rin'which clamps the insu1at- G ETTE.

ing membera' a nst the outer edge portiqn Witnesses:

' of the' top wa 1 of the cup-shaped member WALTER CLARENCE RAITH'ELsubstantially as described. EDWARD Scnwmnp.

